Automatic regulator.



, 'PATENTED psc. '25, 1906. G. A. GUSTAPSOM AUTOMATIC REGULATOR. Hman-Ion rIIILEn nro. e, 1905.'A

a., wAsHmcroN. b. c,

. 'NITED STATES PATENT (oF-FICE. f

eusTAF' A. eusTiirsoN, on cHICAGQiLLiNOIs AuTolvl-ATIC REGULATOR.

SpecificationA of Letters Patent.

- Patented Dec. 25, 190e. I'

ippiicaiioniiiea Deember 6, i905. serai No. 290,523.

To all whom. may concern/:i j

Beit known that I, GUsTAF A. GUsTaFsoN,

a citizen ofthe United States of America, and a resident of Chicago, in thevcounty of Cook and State of Illinois, have invented certain new and useful Improvements in Auto- Amatic Regulators, of-which the following is al specification. Y

This invention relates to that type. of

smoke-consumers -for steam-boiler furnaces in which a jet of air,- or air and steam -combined, is discharged into the combustion- -chamber of the furnace to revent the formation of smoke during an immediately succeeding the firing operation; and the presentinvention has for its object to provide a simple and efficient automatic controlling mechanismby means of which the above functions areeected in a certain and automatic manner, all as will hereinafterl more fully appear,

.and-be' more particularly pointed out the In theaccompanying drawings, Figure 1 is a front elevation of a steam-boiler furnace having" the present improvement applied.I

Fig. 2 is a side elevation, with parts in section,

of the same. Fig. 3 is an enlarged detail section of the oscillating holder by which the op-I .eration of the furnace-jets is controlled. Fig.. 4 islanl enlarged detailsection of one of the furnace-jets.- Fig. 5 is a detail plan view of the furnace fire-door, showing the operatinglugs of the present mechanism.

Similar numerals of reference indicate like: lparts in the several views.=

.Referring tothe drawings, 1 'represents the .steam-boiler furnace, of any usual construction; 2, its front wall, and Spits ire door or doors,v hinged in place, as usual.`

4 represents the usualseries of inclined blower-jets located in .the front wall of the furnace above the fire-doors and adapted to discharge jets ofair, steam, or'air and steam combined in an inclined direction-onto the fuel. Any usual type of suchy jets may be used. It is, however, preferable to use air and -steam combined, andy accordingly such type of jet is shown in the accompanying drawings.- l n 5 is an open-ended-air-supply pipe communicating with the jets 4.

6 isla steam-supply pipe arranged within said air-supply jets 4 aforesaid.

Y is a controlling-valve in the steam-pipe 6 and preferably off the balanced type, so as to pipe and connected with the be easy of operation by the automatic mechf anism hereinafter described.

8 is a stationary bracket secured to the furnace-front and aording bearings for the `automatic mechanism now to be described.

9 is an elongated vessel or holder having trunnionslO at its mid-length by which piv- `otal support is had in the brackets 8 aforesaid. Such holder 9 is preferably` enlarged at eachl end, as shown, and is adapted to'contain a body ofwater, mercury, or like fluid,

as common in this type of devices."

11 is a valve-seat arranged midway the length of the holder 9 and dividing the same into two compartments, as shown in Fig. 3. ,j

12 is a check-valve closing a large orifice in said seat 11 and permitting a rapid flow of the fluid from one end to the other of thev holder 9 in one direction.

14 is a vent pipe or passage connecting the respective ends of the holder 9 together to f permit of a flow of the contained air from one end to the other of the holder in the continued practical operation of the apparatus.

15 and 16 are crank-arms on the trunnions 10 aforesaid and arrangedv substantially at i an angle of ninety degrees tol each other, as shown. Y.

17 is a rod or bar operatively connecting the crank-arm 15 and the valve 7 together.

18 is a rod or bar operatively connecting the -crank-arm 16 with a bellcrank lever hereinafter described. j

When so desired, the respective rods 17 and 18 may be provided with any usual IOO means of longitudinal adjustment` in order that the timing ofthe parts may be regulated after assembly. j

19 is a bell-crank lever pivoted onthe horizontal pivot-rod 20 of a bracket secured to the furnace-front `and having a depending arm 21, ending in a lateral finger 22 for operative engagement with the fire-door 3, as hereinafter described.

23 is a cushion-spring upon the pivot-rod 20 and to one side of the bell-crank lever 19 for yieldingly holding said lever to its engagement with the fire-door.

24 represents a pair of lugs arranged in separated relation on a hinge-eye of the firedoor 3 to form a receiving-recess in which the lateral finger 22 of the bell-crank lever 19 aforesaid has operative engagement, so that the opening and closing of said hre-door will impart corresponding movements to said lever and its accessories.

The operation of the mechanism is as follows: Normally the valve 7, controlling the supply of steam to the furnace-j ets, is closed. With the opening of the fire-door 3 to add fresh fuel, &c., movement is communicated by said fire-door to the bell-crank lever 19,

vand through the instrumentality of the connecting-rod 18 and crank-arm 16 the holder 9 is partly oscillated and its forward end depressed to a point below a horizontal line, and in unison with such movement the crank arm 15 causes an opening of the valve 7. The fluid in said holder then flows by gravity into the forward end of the chamber without any impedance from the check-valve 12, and in consequence a rapid descent of the forward end of said holder takes place. Such descending movement of the forward end of the holder takes place independent of the rod 18 and its connections by the provision of the elongated slot 18 in said rod, as shown in Fig. 2. With a closing of the fire-door move- Ament in a reverse direction is communicated from said fire-door to the bell-crank lever 19, and through the instrumentality of the connecting-rod 18 and crank-arm 16 the holder 9 is partly oscillated to raise its forward end to a point above a horizontal level. The fluid in the forward part of said holder now flows in a slow or retarded manner through the contracted opening 13 into the rear end of the holder 9 to effect a slow descent of the rear end of said holder and a corresponding slow closure of the controlling-valve 7 and a stoppage of the action of the furnace-j ets 4.

Having thus fully described my said invention, what I claim as new, and desire to secure by Letters Patent, is`

l. In an operating mechanism for the pressure-supply valve of smoke-consumers and the like, the combination of a fixed support, a tilting holder containing a fluid body and having trunnions midway its length by which it is journaled in said support, a check-valve and seat arranged centrally in said holder to divide the same into a pair of end chambers, means for affording a restricted communication between said chambers, an air pipe or passage connecting the tops of said chambers together, a pair of crank-arms arranged at right angles to each other on the trunnions of the holder, a pressure-supply valve having a link connection with one of said crank-arms, an operating rod havingan elongated slot connection with the other crank-arm, and means for imparting reciprocation to said rod.

2. In an operating mechanism for the pressure-supply valve of smoke-consumers and the like, the combination of a fixed support, a tilting holder containing a fiuid body and having trunnions midway its length by which it is journaled in said sup port, a check-valve and seat arranged centrally in said holder to divide the same into a pair of end chambers, means for affording a restricted communication between said chambers, an air pipe or passage connecting the tops of said chambers together, a pair cf crank-arms arranged at right angles to each other on the trunnions of the holder, a pressure-supply valve having a link connection with one of said crank-arms, an operating-rod having an elongated slot connection with the other crank-arm, a furnace-door having lugs on its pintle-ears, and an intermediate bell-crank lever having engagement with said lugs and with the operating-rod aforesaid.

3. ln an operating mechanism for the pressure-supply valve of smoke-consumers and the like, the combination of a fixed support, a tilting holder containing a fluid body and having trunnions midway its length by which it is j ournaled in said support, a check-valve and seat arranged centrally in said holder to divide the same into a pair of end chambers, means for affording a restricted communication between said chambers, an air pipe or passage connecting the tops of said chambers together, a pair of crank-arms arranged at right angles to each other on the trunnions of the holder, a pressure-supply valve having a link connection with one of said crank-arms, an operating-rod having an elongated slot connection with the other crank-arm, a furnace-door having lugs on its pintle-ears, and an intermediate bell-crank lever connected to the operating-rod aforesaid and provided with a lateral finger for engagement with said lugs.

4. In an operating mechanism for the pressure-supply valve of smoke-consumers and the like, the combination of a fixed support, a tilting holder containing a Huid body and having trunnions midway its length by which it is ournaled in said support, a check-valve and seat arranged centrally in said holder to divide the same into a pair of end chambers, means for affording a restricted communication between said chambers, an air pipe or passage connecting the tops of said chambers IOO ITO

together, a pair of crank-arms arranged at rod aforesaid, and a spring for holding Said Io right angles to each other on the trunnions of lever to its engagement with said luge.

the holder, a pressure-supply valve having a Signed at Chicago, Illinois; this 2d da3T of linkeonneotion viilh one of said crank-guns, December, 1905. an o erating-ro aving an e ongate s ot i v connotion With the other crank-arm, a furl GUSTAF A GUSTAFSON nace-door having lugs on its pintle-ears,.an \Wtness'es;

intermediate bell-crank lever having engage- ROBERT BURNS,

ment with said lugs and with the operating- I CHAs. F.- JAooBsoN. 

